Neatly work out each problem on a separate sheet of paper. Once you have completed the assignment, then take a picture of your completed work and submit the file on Blackboard under the "Worksheet Submissions" tab. 1. A total of 603 interviews were conducted among a national sample of adults with household incomes of at least $150,000. Of the adults interviewed, 410 said they had purchased clothing, accessories or books online in the past year. Find a 94% confidence interval for the proportion of all US adults with household incomes of at least $150,000 who purchased clothing, accessories or books online in the past year. Round all values to 3 decimal places where applicable. %3D Za/2 = pq E = Za/2, 94% Confidence Interval: (p - E, p + E) = 2. The Arizona Republic conducted a telephone poll of 758 Arizona adults who celebrate Christmas. The question asked was, "In your family, do you open presents on Christmas Eve or Christmas Day?" Of those surveyed, 394 said they wait until Christmas Day. At the 5% significance level, do the data provide enough evidence to conclude that a majority of Arizona families who celebrate Christmas wait until Christmas Day to open their presents? a) Identify the following: a = b) Symbolieally identify: Ho: На: Circle the correet test for this problem: Right-tailed test Left-tailed test Two-tailed test (p-Po) c) Find the test statisties: Z = P040 d) Sketch and shade the curve. Find the p-value. P- value DELL